3. Operands

3.1. Keyword COUCHE

♦ COUCHE = _F

Keyword factor for defining a layer of multilayer composite starting from the lower layer to the upper layer.

3.1.1. Operand EPAIS

Diaper thickness.

3.1.2. Operand MATER

The MA concept contains the material that makes up the layer and is produced by the operator DEFI_MATERIAU under the keyword factor ELAS_ORTH.

The damping parameters AMOR_ALPHA, AMOR_BETA, and AMOR_HYST available in ELAS_ORTH are not taken into account by DEFI_COMPOSITE.

3.1.3. Operand ORIENTATION

Angle of the 1st direction of orthotropy (longitudinal direction or direction of the fibers) in the tangential plane to the element with respect to the 1st direction of the reference frame defined in the operator AFFE_CARA_ELEM by the keyword factor COQUE and the keyword ANGL_REP [U4.42.01].

By default orian is null, otherwise it must be provided in degrees and must be between \(–90°\) and \(+90°\).

3.2. Operand IMPRESSION

This integer allows you to choose the logical unit of the file where the list of homogenized coefficients will be printed in format RESULTAT. By default, the printing will be performed on the logical unit associated with the logical unit file 8.